Fill under grain cover



FIG. 1 is a perspective view of a fill under grain cover showing one of our new designs;

FIG. 2 is a front view thereof;

FIG. 3 is a back view thereof;

FIG. 4 is a left side view thereof;

FIG. 5 is a right side view thereof; and,

FIG. 6 is a top view thereof.

The broken lines in the Figures show portions of the fill under grain cover and environment which form no part of the claimed design. 

CLAIM The ornamental design for fill under grain cover, as shown and described. 